Internal-combustion engine



Nov 11-; 1930. M MARCE LU v 1,781,589

INTERNAL COMBUSTION ENGINE Filed May 10, 1929 3 Sheets-Sheet 1 INVENTOR Y E N R O T Novpll, 1930. M. MARCELLUS INTERNAL COMBUSTION ENGINE 1929 3 Sheets-Sheet 2 Ffiled May 10,

"NOV. 11, 1930. MARCELLUS 1,781,589

INTERNAL COMBUS TION ENGINE Filed May 10, 1929 3 Sheets-Sheet 5 dzfyramflmvellaa INVENTOR ATTORNEY Patented Nov. 11, .1930

UNITED snares MYRON MARCELLUS, on LiBERAL, KANSAS mrnnnnnoomnn'srion ENGINE Application filed May 10,

This invention relates to an internal combustion engine, the general object of the invention being to provide a number of double cylinders, pivotally supported at their transverse centers, a pair of pistons in each double cylinder, which are connected together.

by a rod which is also connected to a crank shaft, with inlet and exhaustmeans at each end of each part of each double cylinder. This arrangement provides a quadruple acting four cycle engine with the cylinders oscillating to accommodate the positions of the pistons without the use of wrist pins, with the same cylinder being used twice in one cycle of operation. 7

Another object of the invention is to arrange the valves transversely and their cam shafts parallel with the cylinder and to make the pistons, their rods and the crank shaft hollow whereby oil can be forced there-- through to'lubricate the various parts.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to

be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claim.

In describing the invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which V Figure 1 is an elevation showing an assembly of three cylinders.

Figure 2is a longitudinal sectional view through one of the cylinders.

Figure 3 is a section on line 3-3 of Figure 2.

Figure 4 is an end view of one of the cylinders and showing the gearing for the cam shafts.

Figure 5 is an elevation with parts in section, of one of the cylinders.

Figure 6 is an elevation taken a quarter turn from Figure 5. V

Figure 7 is a detail View of part of the crank shaft, showing how the piston rods are connected therewith.

Figure 8 is a sectional View through one 1929. Serial No. 362,006.

of the pistons, showing the lubricating jpassages and ports.

Inthese views, the letter A indicates a cylinder of double construction to provide apair of piston chambers 1 and 2. A piston 3 is located in each chamber, the pistons being connected to a rod 4, which passes throughone end of the cylinder and through the Valve housing 5 formed at the center of the cylinder and separating the two chambers.' This housing forms a pair of spaces 6, each of which is in communication with the inner end of each of the chambers and a spark plug 7 extends into each space. exhaust passage 8 and an inlet passage 9 05 are in communication with each space through the ports 10, one for eachfp'assage, these ports being controlled by' the inlet and exhaust valves 11 and 12, the stems of which project from the housing. The valves are held to their's'eats by the usual springs 13.

A single arrangement of inlet and exhaust valves is carried by'a housing l ijat each end of the cylinder, each housing also having a space 6 into which the inlet and exhaust passages of the housing communicate and a spark plug 7 extends into each of these spaces. The four inlet valves are operated b'y'the cam s 1 5 onthe cam shaft '16 rot'atably supported parallel with the cylinder by the brfacket's 17 attachedtothe cylinder and the four exhaust valves are operated bythe cams on asimilar shaft 18! The twosliafts are-geared together by the gears 19 and one of these gears 'meshes with a gear 20 onashaft 21 .journaled bearing parts carried by the cylinder andthis shaft 21-isconnected by the worm gearing 23 with a transversely arranged shaft 24 having a' sprocket 25 at it's'outer end. Thus the cam shaftsare driven from this Shaft 24 through the connections described. This "shaft is journaled f in one of! the trunnions Q26 connected I wit-lithe center of the cylinder" and journaled in asupportiiig fr'ameB. r

Figure. 1 shows this frame supporting threecylind'ers, with the crank shaft 27, also journaled'in jthe frame and with the piston rods connected withftlie' crank '01: said shaft. The cylinders" radiate fro1nthe crank shaft and said shaft has a sprocket 28' thereon 35 over Which passes a chain 29 which also passes over the sprockets on the shafts 24 of the three cylinders so that all three of these shafts are rotated from the crank shaft and said crank shaft is itself rotatedby the recipro cating pistons in the cylinders, the cylinders oscillating on their pivots or trunnions during the reciprocating motions of the pistons.

The inlet manifold 33 is connected with the inlet passages 9 and exhaust manifold 34 is connected with exhaust passages 8, the manifolds being suitably attached to the cylinder.

The pistons are of hollow Construction and the rods and the crank shaft have passages 32 therein, with ports in the bearings so that oil can be forced through the parts and into the pistons from which it will pass'through the holes into the grooves 31 in the Walls of the pistons to lubricate the pistons and the walls of the cylinders, the bearings being lubricated by the oil passing'from the holes therein.

Thus I have provided an engine which is easy to lubricate and each cylinder and piston asseinbly'of which is a'quadruple acting, four cycle one, with themiXture entering each end of each chamber of each cylinder and the exhaust gases passing from each end of each chamber.

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It is thought from the foregoing description that the advantages and novel features of the invention will be readily apparent. It is to be understood that changes may be made in the construction'and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claim. i I What I claim is 2 a I An internal combustion engine comprising a base, a pair of spaced vertically disposed ex tensions on the base, pairs of cylinder bearings carried by'the'extensions and the base ad j acent the ends thereof, crank shaft bearings carried by the extensions in a plane above the bearings on the base and in vertical alignment and in a plane below the bearings on the extensions, a crank shaft journaled in the crank shaft bearings, cylinders each having a pair of explosive chambers pivoted intermediate their ends in said pairs ofbearings, pistons in said chambers and connected in pairs within each cylinder, means connecting the pistons of each cylinder to the crankshaft, intake and exhaust valves for the chambers, valve operating mechanisms carried by each cylinder for the valves, a stub-shaft for each cylinder and extending through one pivot of the respective cylinder, means connecting the stub-shaft ofv each cylinder with the respective valve operating mechanism thereof, gears secured to the stub-shafts and the crank shaft, and a sprocket chain connecting the gears. i 7' In testimony whereof I. afiix my signature.

I MYRON MARCELLUS. 

